[SOLVED] CentOS7: not starting automatically

Herbert_Zugler · January 1, 2019, 9:49pm

Hi!

I recently installed OpenHAB2 (2.4.0) with Zulu 10.1 on CentOS 7 (7.6) following the Linux Install Guide.
The install was successful and i can start OpenHAB2 with “openhab-cli start” without problems.
But starting after reboot doesnt work. Neither “systemctl start openhab2.service” or “/etc/init.d/openhab2 start”
work for starting OpenHAB2 - no error Messages.

A (successfully) start with openhab-cli start --debug produces following Output:
_openhab> WARNING: An illegal reflective access operation has occurred _
WARNING: Illegal reflective access by com.thoughtworks.xstream.core.util.Fields (file:/var/lib/openhab2/cache/org.eclipse.osgi/101/0/.cp/lib/xstream-1.4.7.jar) to field java.lang.reflect.Proxy.h
WARNING: Please consider reporting this to the maintainers of com.thoughtworks.xstream.core.util.Fields
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release

“/usr/share/openhab2/runtime/bin/karaf daemon” produces follwoing error:
mkdir: das Verzeichnis „/usr/share/openhab2/userdata/tmp“ kann nicht angelegt werden: Datei oder Verzeichnis nicht gefunden
KARAF_BASE is not valid: /usr/share/openhab2/userdata

Are there any known issue like this?

BR,
Herbert

J-N-K · January 1, 2019, 9:56pm

The warnings are because you use Java 10, which is not supported for OH 2.4.0. Support for Java versions >8 is currently worked on.

https://github.com/eclipse/smarthome/issues/4369

github.com/openhab/openhab-distro

Add support for running openHAB with Java 11

opened 10:10PM - 17 Sep 18 UTC

closed 10:03PM - 27 Jan 20 UTC

wborn

Currently openHAB only supports Java 8 which is the most recent long-term suppor…t (LTS) release of Java. We should also add support for running openHAB with Java 11, which is the next LTS release and will be released in a week ([September 25th, 2018](http://openjdk.java.net/projects/jdk/11/)). In #761 Karaf was upgraded to 4.2.1 which supports Java 8, 9, 10 and 11. After testing openHAB with Karaf 4.2.1 on Java, 9, 10 and the [JDK 11 Early-Access Builds](http://jdk.java.net/11/) the following issues have been found so far: * XStream causes the JVM to log warnings for _"Illegal reflective access operations"_ See: https://github.com/x-stream/xstream/issues/101, https://github.com/eclipse/smarthome/issues/4369#issuecomment-420170606 * RRD4J persistence addon NoSuchMethodError See: https://github.com/rrd4j/rrd4j/issues/72, https://github.com/openhab/openhab1-addons/issues/5663 * MaryTTS voice addon StringIndexOutOfBoundsException See: https://github.com/marytts/marytts/issues/783, https://github.com/openhab/openhab2-addons/issues/3953 For compatibility of Eclipse SmartHome with Java 11 see also [Test ESH with Java 9/10/11](https://github.com/eclipse/smarthome/issues/4369). --- To simplify JDK 11 testing, I've created an [openhab-docker branch](https://github.com/wborn/openhab-docker/tree/jdk-11) that makes Travis create Debian and Alpine amd64 Docker images using [Zulu Java 11](https://www.azul.com/downloads/zulu/zulu-linux/) every day. For the available tags see my [wborn/openhab-jdk11](https://hub.docker.com/r/wborn/openhab-jdk11/tags/) Docker Hub repository.

Can‘t help with your CentOS issue.

Herbert_Zugler · January 1, 2019, 10:14pm

I installed zulu 8, after removing zulu10 and reinstalled openhab2 without luck.
Same issue: i am only able to start openhab with “openhab-cli start”

Followup:
The issue occurred after the step “setcap” in the install guide:
setcap ‘cap_net_raw,cap_net_admin=+eip cap_net_bind_service=+ep’ $(realpath /usr/bin/java)

I rebooted the system two times Right after installing and openhab started successfully .
After executing the “setcap” command, openhab didn´t start after a reboot

Herbert_Zugler · January 4, 2019, 8:09pm

This is my solution:
do not enter the command “setcap ‘cap_net_raw,cap_net_admin=+eip cap_net_bind_service=+ep’ $(realpath /usr/bin/java)” under CentOS7, because Openhab wont start anymore. I assume there is a Java incompatibility with this command ….